Beautiful antique solid 14K yellow gold necklace and locket in very good condition. Light surface scratching to the gold from use. I can find no gold marks, but the chain and locket both tested as solid 14K gold and are unconditionally guaranteed to be so. The locket measures 7/8 inch across and opens and closes correctly. The chain measures 19 1/4 inches in length and the barrel clasp functions correctly. The back of the locket is engraved ME X Mas 1900. Total weight is 9.6 grams. The center diamond is a natural diamond and measures 2mm across. Beautiful piece of antique jewelry. Please feel free to ask any questions.